Journal of Research of the National Bureau of Standards
AbstractThis is the third of a series of papers dealing with factors affecting the accuracy of measurement of lens distortion by various visual and photographic processes. This paper presents the results of a study of the visual modified goniometric method which employs a viewing theodolite and accurate linear scale. Sources of error are investigated and discussed. Measurements are reported on the same lens that was used in the analysis of two visual and one photographic distortion measuring processes. A comparison of results by the four different methods is given. It is concluded that accurate values of lens distortion can be obtained by the modified goniometric method provided care is taken to use centered apertures and to preserve known angular relationships between telescope pointings and successive locations.
CiteJ. Res. Nat. Bur. Stand., Sec. C: Eng. Instr., Vol. 63C, No. 2, p. 113
OcrABBYY FineReader 8.0
RightsThe Journal of Research of the National Institute of Standards and Technology is a publication of the U.S. Government. The papers are in the public domain and are not subject to copyright in the United States. However, please pay special attention to the individual works to make sure there are no copyright restrictions indicated. Individual works may require securing other permissions from the original copyright holder.